Exercise device



FIG. 1 is a perspective view of an exercise device showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines illustrate portions of the exercise device which form no part of the claimed design. 

CLAIM The ornamental design for an exercise device, as shown and described. 